CN204098852U - A kind of cementing cement head - Google Patents
A kind of cementing cement head Download PDFInfo
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- CN204098852U CN204098852U CN201420535018.7U CN201420535018U CN204098852U CN 204098852 U CN204098852 U CN 204098852U CN 201420535018 U CN201420535018 U CN 201420535018U CN 204098852 U CN204098852 U CN 204098852U
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- plug
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Abstract
The utility model provides a kind of cementing cement head, comprise cementing head body, cementing plug, pin cover cylinder, T-shaped pin is provided with in described pin cover cylinder, also comprise locking pin, locking pin sleeve, locking pin sleeve top has through hole, and bearing pin one end of locking pin passes described through hole and stretches in the locking hole that T-shaped pin has, and the other end connects the locking spring of a band spring base by pin dish; Described through hole is provided with sealing ring; Pin dish outer rim is provided with sealing ring; The locking pin sleeve wall of pin dish upper end has air inlet port; T-shaped pin is by pin and open plug and form; Also be provided with gas control in pin cover cylinder and open capsule, and be placed in the inner side of opening plug; It is flexible hollow capsules that gas control opens capsule; The air inlet pipe that gas control opens capsule is connected with the air inlet port on locking pin sleeve wall; Air inlet port connects the air inlet pipe of source of the gas.Long-range realization can discharge cementing plug, solve pin and be difficult to the problem exiting or need high-altitude application, avoid work high above the ground risk, safe and reliable.
Description
Technical field
The utility model relates to petroleum drilling technology field, particularly a kind of cementing cement head.
Background technology
Well cementing operation is one critical process of petroleum drilling engineering, because well cementing operation is disposable operation, construction risk is comparatively large, so require very high for the continuity of construction.The release plug device of the cementing head of present use for weld two groups of sleeves and pin assembly symmetrically on cementing head body, and lever rear end is screw-rod structure, and front end is polished rod structure, is spiral marking connection between screw rod and sleeve.Pin can support plug when stretching into cementing head inner chamber, and prevent plug surprisingly descending and enter sleeve pipe, then rotate two pins by two constructors in cementing head both sides when needs release plug simultaneously, pin is by being subjected to displacement between the effect of screw thread and sleeve, pin can be exited cementing head, thus plug is discharged, realize cement paste isolate with for slurries and replace cement paste into the effect in annular space always, thus complete well cementing operation.There is following problem in this cementing head: the connection screw thread 1, between screw rod and sleeve because of distortion or particle stuck and cannot rotate; 2, cause spiral marking connection moment of torsion excessive because of reasons such as bushing vacuum are larger, constructor cannot open; 3, the spline distortion of transmitting torque cannot transmitting torque; 4, well head obstruction too much, inconvenient operation, drilling floor surface is wet and slippery easily to be fallen down; 5, well head hand-held tool operates the well that may fall; 6, under specific condition or program (tie back liner or sleeve pipe do not put in place down), cementing head is too high from drilling floor surface, cause constructor cannot normal operating, need use two hanging baskets two constructors to be hung and rise in the air, but revolve that to move back pin very inconvenient aloft, for operating personnel and drilling floor surface personnel all dangerous, may to damage, falling from high altitude and high-altitude junk.
Utility model content
The technical problems to be solved in the utility model is the above-mentioned defect overcoming known technology existence, and a kind of cementing cement head is provided, can do to realize release cementing plug by long distance moving, solve pin and be difficult to the problem exiting or need high-altitude application, be conducive to improving the release success rate of cementing plug and ageing, reduce construction risk and well head operational risk, especially can avoid the risk of work high above the ground, reliably easy to operate and safe, be swift in response.
The utility model is achieved through the following technical solutions, according to a kind of cementing cement head that the utility model provides, comprise: cementing head body, cementing head pressure cap, cementing plug, described cementing head body bilateral symmetry is welded with pin cover cylinder, T-shaped pin is provided with in described pin cover cylinder, described T-shaped pin stretches into cementing head body inside cavity and props up cementing plug, wherein, also comprise locking pin, locking pin sleeve, described locking pin sleeve top has through hole, bearing pin one end of described locking pin passes described through hole and stretches in the locking hole that T-shaped pin has, the other end connects the locking spring of a band spring base by pin dish, described spring base is fixedly connected with pin cover cylinder barrel, described through hole is provided with sealing ring, contacts to be formed to seal with described bearing pin, described pin dish outer rim is provided with sealing ring, contacts to be formed to seal with locking pin sleeve lining, the locking pin sleeve wall of described pin dish upper end has air inlet port, described T-shaped pin is by pin and open plug and form, also be provided with gas control in described pin cover cylinder and open capsule, and be placed in the inner side of opening plug, it is flexible hollow capsules that described gas control opens capsule, the air inlet pipe that described gas control opens capsule is connected with the air inlet port on locking pin sleeve wall, described air inlet port connects the air inlet pipe of source of the gas.
The utility model can also take following technical scheme to realize further:
Aforesaid cementing cement head, wherein, described locking pin end connects a stay cord, extends to drilling floor surface by spring base.
Aforesaid cementing cement head, wherein, also comprises one handle screw rod, described T-shaped pin has inner bolt hole from opening plug one end, the handle end of described handle screw is placed in locking pin sleeve outside, and the other end stretches into inner bolt hole, is connected by the internal thread of the external screw thread on screw rod with T-shaped pin; Described edge beyond the Great Wall of opening is provided with two projections symmetrically, and described pin cover cylinder inwall vertically symmetry has corresponding groove, and described projection embeds in described groove.
Aforesaid cementing cement head, wherein, described handle screw leaves one section of polished rod near handle end, and on described polished rod, cover has screw bolt support, and the axis hole of polished rod and screw bolt support is matched in clearance.
Aforesaid cementing cement head, wherein, described screw bolt support screw thread is fixed on pin cover cylinder, and center is provided with the ball axle sleeve supporting with handle screw.
Aforesaid cementing cement head, wherein, it is polishing metal bar that described pin stretches into cementing head one end, realizes sealing by sealing ring and cementing head body.
Compared with prior art, the utility model has following beneficial effect at least:
(1) the present invention is by the mode of Long-distance Control source of the gas, can realize long-range releases cementing plug, and constructor can away from well head deathtrap, avoids injury to personnel and instrument and to drop equivalent risk in well.
(2) when cementing head is in high-altitude, can avoid carrying out work high above the ground, release cementing plug work can be completed at drilling floor surface, significantly reduce construction risk, avoid falling from high altitude, high-altitude junk, instrument drop the problems such as shaft bottom.
(3) adopt air pressure to be converted into mechanical thrust and return pin, without any mechanical transmission mechanism, reliability is high.Avoid used cementing head because thread quality or cleaning problems cause the problems such as handle cannot rotate.
(4) because bleed pressure is sufficient, gas control is opened capsule and is produced efficient deformation rapidly, and release cementing plug is consuming time shorter, improves construction continuity and safety.
(5) the present invention is provided with two covers and exits pin mode, opens the work that can also complete release cementing plug unsuccessfully manually in gas control mode.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model cementing head;
Fig. 2 is the partial cutaway schematic of Fig. 1;
Fig. 3 is the A-A direction view of Fig. 2;
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, to structure of the present utility model, feature and effect thereof, be described in detail as follows:
As shown in Figure 1 to Figure 3, a kind of cementing cement head that the utility model provides, comprise: cementing head body 1-7, cementing head pressure cap 26, cementing plug 1-17, described cementing head body bilateral symmetry is welded with pin cover cylinder 1-14, T-shaped pin 1-5 is provided with in described pin cover cylinder, described T-shaped pin stretches into cementing head body inside cavity and props up cementing plug, wherein, also comprise locking pin 1-12, locking pin sleeve 1-18, described locking pin sleeve top has through hole, bearing pin one end of described locking pin passes described through hole and stretches in the locking hole 1-13 that T-shaped pin has, the other end connects the locking spring 1-6 of a band spring base 1-11 by pin dish, described spring base is fixedly connected with pin cover cylinder barrel, preferably, described spring base is screw cap type spring base.
Described through hole is provided with sealing ring 1-16, contacts to be formed to seal with described bearing pin; Preferably, two groups of rubber seal can be set; Described pin dish outer rim is provided with sealing ring 1-15, contacts to be formed to seal with locking pin sleeve lining; Preferably, offer two cannelures in pin dish outer rim, two groups of rubber seal load in cannelure; Arranged by sealing, make locking pin sleeve inner form airtight pressure chamber;
The locking pin sleeve wall of described pin dish upper end has air inlet port 1-10; Described T-shaped pin 1-5 by pin 1-51 and open plug 1-52 form; Also be provided with gas control in described pin cover cylinder and open capsule 1-3, and be placed in the inner side of opening plug; Gas control is opened capsule and is enclosed within pin by centre bore, but is not limited to this mode.
It is flexible hollow capsules that described gas control opens capsule; Described gas control is opened the air inlet pipe of capsule and is connected with the air inlet port 1-10 on locking pin sleeve wall; Described air inlet port is connected with the air inlet pipe of source of the gas by joint 23.As shown in Figure 2, the joint 23 being positioned at cementing head both sides is connected with two air inlet pipe 24, and this air inlet pipe accumulates a tracheae by threeway and extends to drilling floor surface, and is connected with the controlling organization of source of the gas 25, controls air inlet and venting by gas source valve.
When locking state, T-shaped pin stretches into cementing head body inside cavity and blocks plug and limit that it is descending, bearing pin one end of locking pin is stretched in the locking hole on pin because of locking spring effect, and anti-gear-stopping bar exits cementing head inside cavity voluntarily because of borehole pressure effect.
When needing release cementing plug, open gas source valve, passed into by low-pressure gas in the pressure chamber in locking pin sleeve, because pressure chamber is very little, pressure raises very fast, overcomes locking spring resistance promotion locking pin descending, completes unblock work; Along with tolerance increases, gas control opens pressure increase in capsule, and capsule deformation also promotes to open outside plug level to move, and moves and exit cementing head body cavity outside drive pin, thus release cementing plug.
Present embodiment can realize further by structure below:
Aforesaid cementing cement head, wherein, described locking pin end connects a stay cord 1-4, extends to drilling floor surface by spring base 1-11.There is the situation of pneumatic unblock failure, manually can pull stay cord downwards, locking pin being retracted in locking pin sleeve 1-18 and realizing unlocking.
Aforesaid cementing cement head, wherein, also comprises one handle screw rod 1-1, described T-shaped pin has inner bolt hole from opening plug one end, the handle end of described handle screw is placed in locking pin sleeve outside, and the other end stretches into inner bolt hole, is connected by the internal thread of the external screw thread on screw rod with T-shaped pin; Described plug 1-5-2 outer rim of opening is provided with two projection 1-8 symmetrically, and pin cover cylinder inwall vertically symmetry has corresponding groove 1-19, and described projection embeds in described groove.When long-range gas control opens failure, handle screw is as opening mechanism for subsequent use, pass through rotary handle, by threads turn, outside pulling force is produced to T-shaped pin with the screw rod of handle one, make it to produce outside horizontal movement, thus manually pin is return, complete the work of release cementing plug; By open edge beyond the Great Wall arrange projection and pin cover cylinder inwall vertically symmetry have corresponding groove, prevent the rotation of the T-shaped pin when manual unlocking, ensure that it produces outside horizontal movement.
Aforesaid cementing cement head, wherein, described handle screw 1-1 leaves one section of polished rod near handle end, and on described polished rod, cover has screw bolt support 1-2, and the axis hole of polished rod and screw bolt support is matched in clearance.Preferably, screw bolt support screw thread is fixed on pin cover cylinder, and center is provided with the ball axle sleeve supporting with handle screw, for the support handle screw rod when manual unlocking and the moment of torsion reduced when rotating.
Aforesaid cementing cement head, wherein, it is polishing metal bar that described pin stretches into cementing head one end, realizes sealing, can bear high pressure by sealing ring 1-9 and cementing head body.Preferably, two cover sealing rings can be set.
In an assembling process, first by installation 6 groups of O-ring seals, gas control is opened capsule and put into pin cover cylinder, T-shaped pin being inserted in gas control opens in capsule and pin cover cylinder again, screw bolt support and pin cover cylinder are connect, then handle screw is stretched into axle sleeve, and by more than 6 circles in screw rod precession pin screw, and whether reversely rotate observation T-shaped pin intact with connection.Then T-shaped pin position is regulated, until by corresponding with locking pin sleeve for the locking hole on pin good, then from locking pin sleeve, locking pin, manual stay cord, locking spring, screw cap type spring base is loaded, finally check locking situation, then cementing plug is loaded cementing head, cover cementing head pressure cap.After rig floor installs cementing head and pipeline gate, joint is connected with air inlet port, air inlet pipe is accessed source of the gas.
By sequence of construction when needs discharge cementing plug, open drilling crew's gas source valve, pressure air enters in the pressure chamber in locking pin sleeve, because pressure chamber is very little, pressure raises very fast, and it is descending to overcome locking spring resistance promotion pin locking pin, complete unblock work (if needed, manually pulling unblock stay cord to complete unblock) downwards, along with tolerance increases, gas control opens pressure increase in capsule, capsule deformation also promotes to open outside plug level to move, and moves and exits cementing head inner chamber, release cementing plug outside drive pin.If long-range gas control failure, all right manual rotation handle screw, pulls out the T-shaped pin be threaded with it, release cementing plug.Afterwards, release gas and restore all mechanisms.
Same, can be designed to the cementing head that long-range action discharges the well cementation end, top plug respectively as required, the structural principle of release bottom plug and the identical of release cementing plug, do not repeat them here yet, but different gas circuit UNICOMs must be adopted, avoid maloperation and discharge cementing plug in advance.
The above is only preferred embodiment of the present utility model, and every any simple modification of carrying out above embodiment according to the technical solution of the utility model and equivalents, all belong to the scope of the utility model protection.
Claims (6)
1. a cementing cement head, comprise: cementing head body, cementing head pressure cap, cementing plug, described cementing head body bilateral symmetry is welded with pin cover cylinder, T-shaped pin is provided with in described pin cover cylinder, described T-shaped pin stretches into cementing head body inside cavity and props up cementing plug, it is characterized in that, also comprise locking pin, locking pin sleeve, described locking pin sleeve top has through hole, bearing pin one end of described locking pin passes described through hole and stretches in the locking hole that T-shaped pin has, the other end connects the locking spring of a band spring base by pin dish, described spring base is fixedly connected with pin cover cylinder barrel, described through hole is provided with sealing ring, contacts to be formed to seal with described bearing pin, described pin dish outer rim is provided with sealing ring, contacts to be formed to seal with locking pin sleeve lining, the locking pin sleeve wall of described pin dish upper end has air inlet port, described T-shaped pin is by pin and open plug and form, also be provided with gas control in described pin cover cylinder and open capsule, and be placed in the inner side of opening plug, it is flexible hollow capsules that described gas control opens capsule, the air inlet pipe that described gas control opens capsule is connected with the air inlet port on locking pin sleeve wall, described air inlet port connects the air inlet pipe of source of the gas.
2. cementing cement head according to claim 1, is characterized in that, described locking pin end connects a stay cord, extends to drilling floor surface by spring base.
3. cementing cement head according to claim 2, it is characterized in that, also comprise one handle screw rod, described T-shaped pin has inner bolt hole from opening plug one end, the handle end of described handle screw is placed in locking pin sleeve outside, the other end stretches into inner bolt hole, is connected by the internal thread of the external screw thread on screw rod with T-shaped pin; Described edge beyond the Great Wall of opening is provided with two projections symmetrically, and described pin cover cylinder inwall vertically symmetry has corresponding groove, and described projection embeds in described groove.
4. cementing cement head according to claim 3, is characterized in that, described handle screw leaves one section of polished rod near handle end, and on described polished rod, cover has screw bolt support, and the axis hole of polished rod and screw bolt support is matched in clearance.
5. cementing cement head according to claim 4, is characterized in that, described screw bolt support screw thread is fixed on pin cover cylinder, and center is provided with the ball axle sleeve supporting with handle screw.
6. cementing cement head as claimed in any of claims 1 to 5, is characterized in that, it is polishing metal bar that described pin stretches into cementing head one end, realizes sealing by sealing ring and cementing head body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535018.7U CN204098852U (en) | 2014-09-17 | 2014-09-17 | A kind of cementing cement head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535018.7U CN204098852U (en) | 2014-09-17 | 2014-09-17 | A kind of cementing cement head |
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| CN204098852U true CN204098852U (en) | 2015-01-14 |
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| CN201420535018.7U Active CN204098852U (en) | 2014-09-17 | 2014-09-17 | A kind of cementing cement head |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256987A (en) * | 2015-06-17 | 2016-12-28 | 中国石油化工股份有限公司 | A kind of atmospheric control for remotely controlling cementing tool |
| CN106321011A (en) * | 2015-06-17 | 2017-01-11 | 中国石油化工股份有限公司 | Pneumatic control system used for controlling cementing tools remotely |
| CN107791988A (en) * | 2017-10-10 | 2018-03-13 | 重庆工业职业技术学院 | A kind of automobile side angle continuously rolls protection device |
| CN109989726A (en) * | 2018-11-22 | 2019-07-09 | 上海中煤物探测量有限公司 | Cellular-type underground, which pinpoints syringe and its applies, is repairing the method in water supply well |
| CN110671074A (en) * | 2018-07-02 | 2020-01-10 | 中国石油化工股份有限公司 | Well cementation rubber plug rubber part and reinforcing method thereof |
| CN112127832A (en) * | 2020-09-04 | 2020-12-25 | 中油国家油气钻井装备工程技术研究中心有限公司 | Integrated remote control cement head |
-
2014
- 2014-09-17 CN CN201420535018.7U patent/CN204098852U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256987A (en) * | 2015-06-17 | 2016-12-28 | 中国石油化工股份有限公司 | A kind of atmospheric control for remotely controlling cementing tool |
| CN106321011A (en) * | 2015-06-17 | 2017-01-11 | 中国石油化工股份有限公司 | Pneumatic control system used for controlling cementing tools remotely |
| CN106256987B (en) * | 2015-06-17 | 2019-01-01 | 中国石油化工股份有限公司 | It is a kind of for remotely controlling the atmospheric control of cementing tool |
| CN106321011B (en) * | 2015-06-17 | 2019-01-04 | 中国石油化工股份有限公司 | It is a kind of for remotely controlling the atmospheric control of cementing tool |
| CN107791988A (en) * | 2017-10-10 | 2018-03-13 | 重庆工业职业技术学院 | A kind of automobile side angle continuously rolls protection device |
| CN107791988B (en) * | 2017-10-10 | 2023-05-12 | 重庆工业职业技术学院 | Automobile lateral continuous rolling protection device |
| CN110671074A (en) * | 2018-07-02 | 2020-01-10 | 中国石油化工股份有限公司 | Well cementation rubber plug rubber part and reinforcing method thereof |
| CN109989726A (en) * | 2018-11-22 | 2019-07-09 | 上海中煤物探测量有限公司 | Cellular-type underground, which pinpoints syringe and its applies, is repairing the method in water supply well |
| CN109989726B (en) * | 2018-11-22 | 2024-06-11 | 中煤地质集团有限公司 | Divided downhole fixed-point injector and method for repairing water supply pipe well by using same |
| CN112127832A (en) * | 2020-09-04 | 2020-12-25 | 中油国家油气钻井装备工程技术研究中心有限公司 | Integrated remote control cement head |
| CN112127832B (en) * | 2020-09-04 | 2023-01-24 | 中油国家油气钻井装备工程技术研究中心有限公司 | Integrated remote control cement head |
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